KR20200039221A - NOx and SOx measuring device of boiler for power plant - Google Patents

NOx and SOx measuring device of boiler for power plant Download PDF

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KR20200039221A
KR20200039221A KR1020180118874A KR20180118874A KR20200039221A KR 20200039221 A KR20200039221 A KR 20200039221A KR 1020180118874 A KR1020180118874 A KR 1020180118874A KR 20180118874 A KR20180118874 A KR 20180118874A KR 20200039221 A KR20200039221 A KR 20200039221A
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exhaust gas
gas
exhaust
power plant
main body
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KR102402427B1 (en
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오인수
김명제
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(주)제스엔지니어링
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/22Devices for withdrawing samples in the gaseous state
    • G01N1/2247Sampling from a flowing stream of gas
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0037NOx
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0044Sulphides, e.g. H2S
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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Abstract

Disclosed is a nitrogen oxide (NOx) and sulfur oxide (SOx) measuring device for a power plant. The NOx and SOx measuring device for a power plant comprises: a body coupled to the outer surface of an exhaust duct of a boiler and having a gas circulation channel for circulating exhaust gas; an exhaust gas detector coupled to the body to communicate with the gas circulation channel and detecting NOx and SOx included in the exhaust gas; an exhaust gas inlet nozzle coupled to the body to communicate with the gas circulation channel, inserted into the exhaust duct, and guiding the exhaust gas, discharged to the exhaust duct, to the exhaust gas detector; and an exhaust gas discharger provided in the body to be positioned inside the exhaust duct and discharging the exhaust gas, introduced into the body through the flow of the exhaust gas, into the exhaust duct. Therefore, the NOx and SOx measuring device can effectively measure the NOx and SOx included in the exhaust gas by allowing the exhaust gas, discharged through the exhaust duct of the boiler, to be smoothly suctioned and discharged using the pressure difference between an inlet and an outlet.

Description

발전 플랜트용 질소산화물 및 황산화물 측정장치{NOx and SOx measuring device of boiler for power plant}Nitrogen oxide and sulfur oxide measuring device for power plant {NOx and SOx measuring device of boiler for power plant}

본 발명은 발전 플랜트용 질소산화물 및 황산화물 측정장치에 관한 것으로, 보다 상세하게는 보일러의 배기덕트를 통해 배출되는 배기가스를 유입구와 배기구의 압력차이를 이용하여 원활하게 흡입되어 배출되도록 함으로써, 배기가스에 포함되는 질소산화물 및 황산화물을 효과적으로 측정할 수 있도록 하는 발전 플랜트용 질소산화물 및 황산화물 측정장치에 관한 것이다.
The present invention relates to an apparatus for measuring nitrogen oxides and sulfur oxides for a power plant, and more specifically, by exhausting the exhaust gas discharged through the exhaust duct of the boiler by using the pressure difference between the inlet and the exhaust to be smoothly sucked and discharged. The present invention relates to a nitrogen oxide and sulfur oxide measuring device for a power plant that can effectively measure nitrogen oxides and sulfur oxides contained in gas.

일반적으로, 발전소는 크게 원자력 발전소, 수력 발전소, 화력 발전소, 태양열 발전소로 구분되며, 최근에는 복합 발전소가 건설되고 있는 추세이다.In general, power plants are largely classified into nuclear power plants, hydro power plants, thermal power plants, and solar power plants, and recently, a complex power plant is being built.

이중 화력 발전소(Thermoelectric Power Plant)는 석탄, 석유, 천연가스 등의 연료를 연소시킨 열을 이용하여 고온고압의 증기를 만들고, 이 고온고압의 증기를 이용하여 증기 터빈을 회전시켜 전력을 생산하게 된다. A thermoelectric power plant produces high-temperature and high-pressure steam using heat from combustion of fuels such as coal, oil, and natural gas, and uses this high-temperature and high-pressure steam to rotate the steam turbine to produce power. .

한편, 최근에 건설되는 화력 발전소에서 많이 채택되고 있는 순환 유동층(Fluidized Bed) 연소 기술은 석탄을 적당한 크기로 분쇄하여 만든 석탄 입자들과 석회석 및 모래와 같은 유동 매체에 적정속도의 공기를 불어넣어 부유 유동층(Suspended FluidIzed Bed)상태로 만들어 보일러로 공급하여 연소시키는 방법이다.On the other hand, the circulating fluidized bed combustion technology, which has been widely adopted in recently built thermal power plants, floats the coal particles made by pulverizing the coal to a suitable size, and blows air at an appropriate speed into a fluid medium such as limestone and sand. This is a method of making a fluidized bed (Suspended FluidIzed Bed) and supplying it to a boiler for combustion.

이러한, 순환 유동층 연소는 고체 입자에 의한 직접 열전달로 열전달 효율이 매우 높고 노 내의 연소온도는 미분탄 연소방식의 노내 온도보다 훨씬 적어 수관 및 과열기관 등의 고온부식, 스케일 등의 설비 파손이 적은 장점이 있을 뿐만 아니라, 그 독특한 연소 특성상 유동매체가 완전 연소될 때까지 순환시키기 때문에 미분탄 연소식과는 달리 낮은 발열량과 다량의 수분을 함유한 저질탄 연소가 가능하고, 비교적 낮은 온도(900℃ 이하)에서 연소가 일어나기 때문에 질소산화물의 발생이 현저하게 감소된다. 이로 인하여, 질소산화물 배출 규제치 준수를 위한 별도의 탈질설비(SCR or SNCR)를 필요로 하지 않는 이점도 있었다.This, circulating fluidized bed combustion has the advantage of high heat transfer efficiency due to direct heat transfer by solid particles, and the combustion temperature in the furnace is much less than the temperature in the furnace of the pulverized coal combustion method, so there is little advantage of high temperature corrosion such as water pipes and superheating engines, and damage to scales, etc. Not only that, because of its unique combustion characteristics, it circulates until the fluid medium is completely burned. Because it occurs, the generation of nitrogen oxides is significantly reduced. Due to this, there was an advantage that does not require a separate denitrification facility (SCR or SNCR) to comply with the nitrogen oxide emission limit.

순환 유동층 연소 기술에 사용되는 석탄 연소보일러는 비회(Fly Ash) 등의 분진이 다량 발생하기 때문에 보일러 후단에 집진설비를 설치하게 되며, 집진설비로 주로 전기 집진기가 사용된다.Coal-fired boilers used in the circulating fluidized bed combustion technology generate a large amount of dust such as fly ash, so they install dust collection equipment at the rear of the boiler, and electric dust collectors are mainly used as dust collection equipment.

전기 집진기는 크게 하전장치, 추타장치(Rapper), 분진배출장치를 포함하며, 보일러에서 배출되는 배기가스가 입구측의 정류판을 통해 그 분포가 균일화되면서 내부를 통과하게 된다. 그리고 배기가스에 포함되는 애쉬가 방전극과 집진극을 포함하는 전극판에 의해 포집되고, 포진된 분진이 추타장치에 의해 호퍼로 낙하되어 처리된다.The electrostatic precipitator largely includes a charging device, a rapper, and a dust discharge device, and the exhaust gas discharged from the boiler passes through the inside while the distribution is uniform through the rectifying plate at the inlet side. Then, the ash contained in the exhaust gas is collected by the electrode plate including the discharge electrode and the dust collecting electrode, and the shredded dust is dropped into the hopper by the crushing device and processed.

또한, 보일러의 배기덕트나 전기 집진기에는 배기가스에 포함되는 애쉬를 측정하기 위한 측정장치가 다양한 형태로 설치된다.In addition, in the exhaust duct or the electrostatic precipitator of the boiler, measuring devices for measuring ash contained in exhaust gas are installed in various forms.

그러나, 상기와 같은 종래 기술의 보일러의 애쉬 측정장치는 덕트를 따라 배출되는 배기가스의 포집이 원활하게 이루어지지 못하는 문제점이 있다.However, the ash measuring device of the prior art boiler has a problem in that the collection of exhaust gas discharged along the duct is not smooth.

따라서, 이를 개선할 필요성이 요청된다.Therefore, there is a need to improve this.

한편, 대한민국 등록실용신안 제20-0421275호(등록일:2006년07월04일)에는 "보일러 배기가스의 샘플링 프로브 구조"가 개시되고, 등록특허 제10-0890062호(등록일:2009년03월16일)에는 "시료가스 채취용 프로브 유니트 및 이를 이용한 배기가스 원격측정시스템"이 개시되어 있다.
On the other hand, the Republic of Korea Utility Model No. 20-0421275 (registration date: July 04, 2006), "boiler exhaust gas sampling probe structure" is disclosed, and registered patent No. 10-0890062 (Registration date: March 16, 2009 Work) discloses a "probe unit for sampling gas and a telemetry system for exhaust gas using the same".

본 발명은 상기와 같은 필요성에 의해 창출된 것으로서, 보일러의 배기덕트를 통해 배출되는 배기가스를 유입구와 배기구의 압력차이를 이용하여 원활하게 흡입되어 배출되도록 하여 배기가스에 포함되는 질소산화물 및 황산화물을 효과적으로 측정할 수 있는 발전 플랜트용 질소산화물 및 황산화물 측정장치를 제공하는데 그 목적이 있다.
The present invention was created by the necessity as described above, and the exhaust gas discharged through the exhaust duct of the boiler is smoothly sucked and discharged using the pressure difference between the inlet and the exhaust port, thereby allowing nitrogen oxides and sulfur oxides contained in the exhaust gas to be discharged. It is an object of the present invention to provide a nitrogen oxide and sulfur oxide measuring device for a power plant that can effectively measure.

상기한 목적을 달성하기 위하여 본 발명의 일 측면에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치는, 보일러의 배기덕트의 외면에 결합되며, 배기가스의 순환을 위한 가스 순환유로부를 구비하는 본체와, 상기 가스 순환유로부와 연통하도록 상기 본체에 결합되며, 상기 배기가스에 포함되는 질소산화물과 황산화물을 감지하는 배기가스 감지부와, 상기 가스 순환유로부와 연통하도록 상기 본체에 결합되어 상기 배기덕트의 내부로 삽입되며, 상기 배기덕트로 배출되는 상기 배기가스를 상기 배기가스 감지부로 유도하는 배기가스 유입 노즐부와, 상기 배기덕트의 내부에 위치하도록 상기 본체에 구비되며, 상기 배기가스의 흐름을 통해 상기 본체로 유입되는 상기 배기가스를 상기 배기덕트로 배출시키는 배기가스 배출부를 포함하는 것을 특징으로 한다.In order to achieve the above object, the nitrogen oxide and sulfur oxide measuring device for a power plant according to an aspect of the present invention is coupled to the outer surface of the exhaust duct of the boiler, and the main body having a gas circulation passage for circulation of exhaust gas and , It is coupled to the main body to communicate with the gas circulation flow path portion, the exhaust gas detection unit for detecting the nitrogen oxides and sulfur oxides contained in the exhaust gas, and the exhaust gas is coupled to the main body to communicate with the gas circulation flow path portion It is inserted into the interior of the duct, the exhaust gas inlet nozzle unit for guiding the exhaust gas discharged to the exhaust duct to the exhaust gas detection unit, and is provided in the main body to be located inside the exhaust duct, the flow of the exhaust gas And an exhaust gas discharge part for discharging the exhaust gas flowing into the main body through the exhaust duct. And a gong.

본 발명에서 상기 배기가스 유입 노즐부는, 일단부가 상기 본체로 삽입되어 고정되고 타단부가 상기 배기덕트의 내부에 위치되는 가스유입 배관부재와, 상기 가스유입 배관부재의 타단부에 결합되며, 상기 배기덕트에서 이송하는 배기가스의 유속을 저감시켜 포집하는 유속 저감통부재를 포함하는 것을 특징으로 한다.In the present invention, the exhaust gas inlet nozzle portion, one end is inserted into the main body is fixed and the other end is coupled to the gas inlet pipe member located inside the exhaust duct, and the other end of the gas inlet pipe member, the exhaust It characterized in that it comprises a flow rate reducing cylinder member to collect by reducing the flow rate of the exhaust gas transported from the duct.

본 발명에서 상기 배기가스 배출부는, 상기 본체의 가스 순환유로부와 연결되는 가스배출 배관부재와, 상기 가스배출 배관부재에 수직으로 결합되며, 상기 배기가스의 유속을 증가시키는 가스유속 증가부재를 포함하는 것을 특징으로 한다.
In the present invention, the exhaust gas discharge part includes a gas discharge pipe member connected to the gas circulation passage part of the main body, and a gas flow rate increasing member vertically coupled to the gas discharge pipe member and increasing the flow rate of the exhaust gas It is characterized by.

이상에서 설명한 바와 같이, 본 발명의 일 측면에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치는 종래기술과는 달리 보일러의 배기덕트를 통해 배출되는 연소가스를 배기가스 유입 노즐부와 배기가스 배출부의 압력차이를 이용하여 원활하게 흡입되어 배출하므로, 배기가스에 포함되는 질소산화물 및 황산화물을 효과적으로 채집하여 측정할 수 있는 효과를 가진다.
As described above, the nitrogen oxide and sulfur oxide measuring device for a power plant according to an aspect of the present invention, unlike the prior art, the combustion gas discharged through the exhaust duct of the boiler exhaust gas inlet nozzle and exhaust gas outlet Since it is smoothly inhaled and discharged using a pressure difference, it has an effect of effectively collecting and measuring nitrogen oxides and sulfur oxides contained in exhaust gas.

도 1은 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 설명하기 위한 모식도이다.
도 2는 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 나타낸 분해 사시도이다.
도 3은 도 2의 결합 사시도이다.
도 4는 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 설명하기 위한 단면도이다.
도 5는 본 발명의 일 실시 예에 따른 배기가스 배출부를 설명하기 위한 단면도이다.
도 6은 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치의 배기가스 흐름을 보인 도면이다.
1 is a schematic view for explaining a nitrogen oxide and sulfur oxide measuring apparatus for a power plant according to an embodiment of the present invention.
2 is an exploded perspective view showing a nitrogen oxide and sulfur oxide measuring device for a power plant according to an embodiment of the present invention.
FIG. 3 is a combined perspective view of FIG. 2.
4 is a cross-sectional view illustrating a nitrogen oxide and sulfur oxide measuring device for a power plant according to an embodiment of the present invention.
5 is a cross-sectional view for describing an exhaust gas discharge unit according to an embodiment of the present invention.
6 is a view showing the exhaust gas flow of the nitrogen oxide and sulfur oxide measuring apparatus for a power plant according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치의 바람직한 실시예를 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다.Hereinafter, a preferred embodiment of a nitrogen oxide and sulfur oxide measuring device for a power plant according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience.

또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.
In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 설명하기 위한 모식도이고, 도 2는 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 나타낸 분해 사시도이고, 도 3은 도 2의 결합 사시도이다.1 is a schematic view for explaining a nitrogen oxide and sulfur oxide measuring device for a power plant according to an embodiment of the present invention, Figure 2 is a nitrogen oxide and sulfur oxide measuring device for a power plant according to an embodiment of the present invention 3 is an exploded perspective view, and FIG. 3 is a combined perspective view of FIG. 2.

또한, 도 4는 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치를 설명하기 위한 단면도이고, 도 5는 본 발명의 일 실시 예에 따른 배기가스 배출부를 설명하기 위한 단면도이고, 도 6은 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치의 배기가스 흐름을 보인 도면이다.
In addition, Figure 4 is a cross-sectional view for explaining a nitrogen oxide and sulfur oxide measuring apparatus for a power plant according to an embodiment of the present invention, Figure 5 is a cross-sectional view for explaining the exhaust gas discharge unit according to an embodiment of the present invention , Figure 6 is a view showing the exhaust gas flow of the nitrogen oxide and sulfur oxide measuring device for a power plant according to an embodiment of the present invention.

도 1 내지 도 6에 도시된 바와 같이, 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치(100)는, 발전 플랜트용 보일러의 배기덕트(10)에 설치되어 배기덕트(10)를 통해 배출되는 배기가스에 포함되는 질소산화물 및 황산화물을 측정한다.1 to 6, the nitrogen oxide and sulfur oxide measuring device 100 for a power plant according to an embodiment of the present invention is installed in the exhaust duct 10 of the boiler for the power plant, and the exhaust duct ( 10) Measure the nitrogen oxide and sulfur oxide contained in the exhaust gas emitted through.

이를 위하여 본 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치(100)는 배기덕트(10)에 결합되는 본체(110)와, 배기가스의 질소산화물 및 황산화물을 감지하도록 본체(110)에 결합되는 배기가스 감지부(120)와, 배기가스를 배기가스 감지부(120)로 유도하기 위한 배기가스 유입 노즐부(130)와, 배기가스 감지부(120)를 거친 배기가스를 배출시키는 배기가스 배출부(140)를 포함한다.To this end, the nitrogen oxide and sulfur oxide measuring apparatus 100 for a power plant according to the present embodiment includes a body 110 coupled to an exhaust duct 10 and a body 110 to detect nitrogen oxides and sulfur oxides of exhaust gas Exhaust gas detection unit 120 coupled to, and the exhaust gas inlet nozzle unit 130 for guiding the exhaust gas to the exhaust gas detection unit 120, and exhaust gas passing through the exhaust gas detection unit 120 to discharge It includes an exhaust gas discharge unit 140.

이러한 본 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치(100)는 배기가스 유입 노즐부(130)와 배기가스 배출부(140)에 배기가스의 압력차이가 발생되도록 하여 배기가스의 흐름을 원활하게 유지시켜, 배기가스의 질소산화물 및 황산화물을 효과적으로 채집하여 측정할 수 있다.The nitrogen oxide and sulfur oxide measuring apparatus 100 for a power plant according to the present embodiment allows the pressure difference of the exhaust gas to be generated in the exhaust gas inlet nozzle part 130 and the exhaust gas discharge part 140 so that the exhaust gas flows. By keeping it smooth, nitrogen oxides and sulfur oxides of exhaust gas can be effectively collected and measured.

본체(110)는 보일러의 배기덕트(10)의 외면에 볼트를 통해 결합되며, 배기가스의 순환을 위한 가스 순환유로부(110a)를 구비한다. 구체적으로, 본체(110)는 배기덕트(10)에 결합되는 플랜지부재(111)와, 배기가스 감지부(120)가 결합되는 메인블록(113)을 포함한다.The main body 110 is coupled to the outer surface of the exhaust duct 10 of the boiler through a bolt, and is provided with a gas circulation flow path part 110a for circulation of exhaust gas. Specifically, the main body 110 includes a flange member 111 coupled to the exhaust duct 10 and a main block 113 to which the exhaust gas detection unit 120 is coupled.

플랜지부재(111)는 중앙부에 배기가스 유입 노즐부(130)가 관통하고, 일측에 배기가스 배출부(140)가 결합된다.The flange member 111 has an exhaust gas inlet nozzle portion 130 through the central portion, and an exhaust gas outlet portion 140 is coupled to one side.

메인블록(113)은 배기가스 감지부(120)가 결합되며, 배기가스의 순환을 위한 가스 순환유로부(110a)가 형성된다. 이때, 배기가스 감지부(120)는 가스 순환유로부(110a)로 삽입된다.The main block 113 is coupled to the exhaust gas detection unit 120, a gas circulation flow path portion 110a for circulation of the exhaust gas is formed. At this time, the exhaust gas detection unit 120 is inserted into the gas circulation flow path unit 110a.

가스 순환유로부(110a)는 배기가스 유입 노즐부(130)와 배기가스 배출부(140)를 연결하도록 플랜지부재(111)와 메인블록(113)에 형성된다.The gas circulation flow path part 110a is formed on the flange member 111 and the main block 113 to connect the exhaust gas inlet nozzle part 130 and the exhaust gas discharge part 140.

배기가스 감지부(120)는 가스 순환유로부(110a)와 연통하도록 본체(110)의 메인블록(113)에 결합되며, 내부의 배기가스의 순환을 위한 센싱유로(121)가 형성된다. 이러한 배기가스 감지부(120)는 고정플랜지를 통해 메인블록(113)에 결합되며, 외부의 제어장치와 연결된다. 본 실시 예에 따른 배기가스 감지부(120)는 센싱유로(121)를 통해 순환하는 배기가스에 포함되는 질소산화물과 황산화물을 감지한다.The exhaust gas detection unit 120 is coupled to the main block 113 of the main body 110 to communicate with the gas circulation flow path unit 110a, and a sensing flow path 121 for circulation of the exhaust gas is formed. The exhaust gas detection unit 120 is coupled to the main block 113 through a fixed flange, and is connected to an external control device. The exhaust gas detection unit 120 according to the present embodiment detects nitrogen oxides and sulfur oxides included in exhaust gas circulating through the sensing flow path 121.

배기가스 유입 노즐부(130)는 가스 순환유로부(110a)와 연통하도록 플랜지부재(111)를 관통하여 메인블록(113)에 결합되며, 배기덕트(10)에서 이송되는 배기가스를 배기가스 감지부(120)로 유도한다.The exhaust gas inlet nozzle unit 130 is coupled to the main block 113 through the flange member 111 so as to communicate with the gas circulation passage unit 110a, and detects exhaust gas transferred from the exhaust duct 10 It leads to the wealth 120.

이러한 배기가스 유입 노즐부(130)는 본체(110)에 결합되어 배기덕트(10)의 내부에 배치되는 가스유입 배관부재(131)와, 배기가스를 가스유입 배관부재(131)로 유도하기 위한 유속 저감통부재(133)를 포함한다. 이때, 유속 저감통부재(133)는 가스유입 배관부재(131)에 결합된다.The exhaust gas inlet nozzle unit 130 is coupled to the main body 110 for guiding the gas inlet piping member 131 disposed inside the exhaust duct 10 and the exhaust gas to the gas inlet piping member 131 It includes a flow rate reduction cylinder member (133). At this time, the flow rate reduction cylinder member 133 is coupled to the gas inlet pipe member 131.

가스유입 배관부재(131)는 일단부가 플랜지부재(111)를 관통하여 메인블록(113)의 가스 순환유로부(110a)에 결합되고, 타단부가 배기덕트(10)의 내부에 위치하게 된다. 이러한 가스유입 배관부재(131)는 배기덕트(10)의 크기와 형상에 따라 배관어댑터(131a)를 통해 복수개 연결되어 사용될 수도 있다.The gas inlet piping member 131 has one end penetrated through the flange member 111 and is coupled to the gas circulation passage 110a of the main block 113, and the other end is located inside the exhaust duct 10. A plurality of such gas inlet piping members 131 may be connected and used through the piping adapter 131a according to the size and shape of the exhaust duct 10.

유속 저감통부재(133)는 가스유입 배관부재(131)의 직경보다 크게 형성되며, 가스유입 배관부재(131)의 타단부에 결합된다. 이러한 유속 저감통부재(133)는 배기가스의 이송방향과 대응되는 부위에 배기가스의 유입을 위한 가스 유입공(133a)이 복수개 형성된다. 즉, 가스 유입공(133a)을 통해 유속 저감통부재(133)로 유입되는 배기가스의 유속이 저하되면서 가스유입 배관부재(131)로 유입된다.The flow rate reduction cylinder member 133 is formed larger than the diameter of the gas inlet pipe member 131, and is coupled to the other end of the gas inlet pipe member 131. The flow rate reduction cylinder member 133 is formed with a plurality of gas inlet holes (133a) for the inflow of the exhaust gas in a portion corresponding to the transport direction of the exhaust gas. That is, the flow rate of the exhaust gas flowing into the flow rate reducing cylinder member 133 through the gas inlet hole 133a decreases and then flows into the gas inlet pipe member 131.

본 실시 예에 따른 가스유입 배관부재(131)는 배기가스 배출부(140)에 의해 발생하는 유입구와 배출구의 압력차이로 인하여 유속 저감통부재(133)의 배기가스가 가스유입 배관부재(131)를 통해 원활하게 유입된다.The gas inlet piping member 131 according to the present embodiment is the exhaust gas of the flow rate reduction cylinder member 133 due to the pressure difference between the inlet and outlet generated by the exhaust gas outlet 140, the gas inlet piping member 131 Flows through smoothly.

배기가스 배출부(140)는, 배기덕트(10)의 내부에 위치하도록 본체(110)의 플랜지부재(111)에 결합되며, 배기가스의 흐름을 통해 본체(110)의 가스 순환유로부(110a)로 유입되어 순환하는 배기가스의 배출을 촉진시킨다.The exhaust gas discharge unit 140 is coupled to the flange member 111 of the main body 110 so as to be located inside the exhaust duct 10, and through the flow of the exhaust gas, the gas circulation flow path part 110a of the main body 110 ) To promote the emission of circulating exhaust gas.

이를 위하여 본 실시 예에 따른 배기가스 배출부(140)는 플랜지부재(111)에 결합되어 본체(110)의 가스 순환유로부(110a)와 연통되는 가스배출 배관부재(141)와, 가스배출 배관부재(141)의 배기가스 배출을 촉진시키기 위한 가스유속 증가부재(143)를 포함한다.To this end, the exhaust gas discharge unit 140 according to the present embodiment is coupled to the flange member 111 and the gas discharge pipe member 141 communicating with the gas circulation flow path portion 110a of the body 110, and the gas discharge pipe It includes a gas flow rate increasing member 143 for promoting the exhaust gas discharge of the member 141.

가스배출 배관부재(141)는 배기덕트(10)의 내부에 위치하도록 플랜지부재(111)와 결합되며, 끝단부에 가스유속 증가부재(143)가 결합된다.The gas discharge pipe member 141 is coupled to the flange member 111 so as to be located inside the exhaust duct 10, and a gas flow rate increasing member 143 is coupled to the end.

가스유속 증가부재(143)는 가스배출 배관부재(141)의 끝단부 압력이 낮아지도록 배기가스가 이송된다. 이러한 가스유속 증가부재(143)는 배기덕트(10)의 배기가스 이송방향과 동일한 방향으로 배치되며, 내부로 유입되는 배기가스의 유속을 증가시키게 된다. 이를 위하여 가스유속 증가부재(143)는 가스 유입구의 직격이 가스 배출구의 직경보다 크게 형성되며 가스 배출구 부위에 가스배출 배관부재(141)가 수직으로 결합된다.In the gas flow rate increasing member 143, the exhaust gas is transferred so that the pressure at the end of the gas discharge piping member 141 is lowered. The gas flow rate increasing member 143 is arranged in the same direction as the exhaust gas transfer direction of the exhaust duct 10, and increases the flow rate of the exhaust gas flowing into the inside. To this end, the gas flow rate increasing member 143 is formed so that the direct inlet of the gas inlet is larger than the diameter of the gas outlet, and the gas discharge piping member 141 is vertically coupled to the gas outlet.

상기와 같이 구성되는 본 발명의 일 실시 예에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치(100)는, 보일러의 배기덕트(10)를 통해 배출되는 배기가스를 배기가스 유입 노즐부(130)와 배기가스 배출부(140)에 의해 발생하는 압력차이에 의해 원활하게 유입되어 배기가스 감지부(120)를 순환하여 배출된다. 이를 통해 분석을 위한 배기가스와 지속적으로 순환되므로, 실시간으로 측정결과를 도출할 수 있게 된다.Nitrogen oxide and sulfur oxide measuring apparatus 100 for a power plant according to an embodiment of the present invention configured as described above, the exhaust gas discharged through the exhaust duct 10 of the boiler exhaust gas inlet nozzle unit 130 And is smoothly introduced by the pressure difference generated by the exhaust gas discharge unit 140, and is discharged by circulating the exhaust gas detection unit 120. Through this, since it is continuously circulated with the exhaust gas for analysis, it is possible to derive measurement results in real time.

또한, 본 발명에 따른 발전 플랜트용 질소산화물 및 황산화물 측정장치(100)는 배기가스 유입 노즐부(130)에서는 유속 저감통부재(133)에 의해 배기가스의 흐름이 저하되고, 배기가스 배출부(140)에서는 가스유속 증가부재(143)에 의해 배기가스 배출이 증가하게 된다. 따라서, 배기가스의 유입이 효과적으로 진행되므로, 배기가스의 질소산화물 및 황산화물 측정을 보다 용이하게 진행할 수 있다.In addition, in the nitrogen oxide and sulfur oxide measuring apparatus 100 for a power plant according to the present invention, the flow of the exhaust gas is reduced by the flow rate reduction cylinder member 133 in the exhaust gas inlet nozzle unit 130, and the exhaust gas discharge unit At 140, the exhaust gas emission is increased by the gas flow rate increasing member 143. Therefore, since the inflow of the exhaust gas is effectively progressed, nitrogen oxide and sulfur oxide measurements of the exhaust gas can be more easily performed.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.The present invention has been described with reference to the embodiment shown in the drawings, but this is only exemplary, and those skilled in the art to which the art belongs can various modifications and equivalent other embodiments from this. Will understand.

따라서, 본 발명의 진정한 기술적 보호범위는 특허청구범위에 의해서 정하여져야 할 것이다.
Therefore, the true technical protection scope of the present invention should be defined by the claims.

100 : 발전 플랜트용 질소산화물 및 황산화물 측정장치
110 : 본체 111 : 플랜지부재
113 : 메인블록 120 : 배기가스 감지부
121 : 센싱유로 130 : 배기가스 유입 노즐부
131 : 가스유입 배관부재 133 : 유속 저감통부재
140 : 배기가스 배출부 141 : 가스배출 배관부재
143 : 가스유속 증가부재
100: nitrogen oxide and sulfur oxide measuring device for power plant
110: main body 111: flange member
113: main block 120: exhaust gas detection unit
121: sensing passage 130: exhaust gas inlet nozzle
131: gas inlet piping member 133: flow rate reduction cylinder member
140: exhaust gas discharge unit 141: gas discharge piping member
143: member for increasing gas flow rate

Claims (3)

보일러의 배기덕트의 외면에 결합되며, 배기가스의 순환을 위한 가스 순환유로부를 구비하는 본체;
상기 가스 순환유로부와 연통하도록 상기 본체에 결합되며, 상기 배기가스에 포함되는 질소산화물과 황산화물을 감지하는 배기가스 감지부;
상기 가스 순환유로부와 연통하도록 상기 본체에 결합되어 상기 배기덕트의 내부로 삽입되며, 상기 배기덕트로 배출되는 상기 배기가스를 상기 배기가스 감지부로 유도하는 배기가스 유입 노즐부; 및
상기 배기덕트의 내부에 위치하도록 상기 본체에 구비되며, 상기 배기가스의 흐름을 통해 상기 본체로 유입되는 상기 배기가스를 상기 배기덕트로 배출시키는 배기가스 배출부;
를 포함하는 것을 특징으로 하는 발전 플랜트용 질소산화물 및 황산화물 측정장치.
It is coupled to the outer surface of the exhaust duct of the boiler, the main body having a gas circulation passage for circulation of exhaust gas;
An exhaust gas detection unit coupled to the main body to communicate with the gas circulation passage unit and detecting nitrogen oxides and sulfur oxides included in the exhaust gas;
An exhaust gas inflow nozzle unit coupled to the main body to communicate with the gas circulation channel part, inserted into the exhaust duct, and guiding the exhaust gas discharged through the exhaust duct to the exhaust gas detection unit; And
An exhaust gas discharge unit provided on the main body to be located inside the exhaust duct and discharging the exhaust gas flowing into the main body through the flow of the exhaust gas to the exhaust duct;
Nitrogen oxide and sulfur oxide measuring device for a power plant, comprising a.
제 1 항에 있어서,
상기 배기가스 유입 노즐부는, 일단부가 상기 본체로 삽입되어 고정되고 타단부가 상기 배기덕트의 내부에 위치되는 가스유입 배관부재; 및
상기 가스유입 배관부재의 타단부에 결합되며, 상기 배기덕트에서 이송하는 배기가스의 유속을 저감시켜 포집하는 유속 저감통부재;
를 포함하는 것을 특징으로 하는 발전 플랜트용 질소산화물 및 황산화물 측정장치.
According to claim 1,
The exhaust gas inlet nozzle portion, one end is inserted into the main body is fixed and the other end is a gas inlet piping member located inside the exhaust duct; And
A flow rate reducing cylinder member coupled to the other end of the gas inlet piping member, and reducing and collecting the flow rate of the exhaust gas transferred from the exhaust duct;
Nitrogen oxide and sulfur oxide measuring device for a power plant, comprising a.
제 1 항에 있어서,
상기 배기가스 배출부는, 상기 본체의 가스 순환유로부와 연결되는 가스배출 배관부재; 및
상기 가스배출 배관부재에 수직으로 결합되며, 상기 배기가스의 유속을 증가시키는 가스유속 증가부재;
를 포함하는 것을 특징으로 하는 발전 플랜트용 질소산화물 및 황산화물 측정장치.

According to claim 1,
The exhaust gas discharge portion, a gas discharge pipe member connected to the gas circulation passage portion of the main body; And
A gas flow rate increasing member which is vertically coupled to the gas discharge piping member and increases the flow rate of the exhaust gas;
Nitrogen oxide and sulfur oxide measuring device for a power plant, comprising a.

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